On Monday 20 July 2020 20:39:38 andy pugh wrote: > On Tue, 21 Jul 2020 at 01:33, Matthew Herd <herd.m...@gmail.com> wrote: > > Good thoughts Jon and Gene, I was thinking the same thing. The > > count when running the encoder diagnostics keeps resetting to 0. So > > I will drag out my scope and see what I find. > > I think you will have a lot more luck with halscope than real-scope > here. > > Try halscoping motion.spindle-revs through a G33,1 cycle in air.
halscope hasn't, Andy, by decades, enough bandwidth to register the noise I'd be looking for. 3 to 10 nanosecond stuff. That is right at the bandwidth limit of my digital, and approaching the limits of my elderly Hitachi V-1065 which is still showing me a usable signal at 180 MHZ. Mesa cards see it well. No clue how fast Matthews stuff is though. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
